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Description
30 mm Ball Bearing Block - Single, LeadThe Seldn BBB30 Lead Block is a 30mm ball bearing block designed for lower loads on smaller boats or trim lines. It features stainless steel ball bearings for strength and smooth operation. Easy installation with 2 M5 screws. Typically used for the control line of a main sheet track system. BlockType: lead,single SubType: lead single Breaking Load: 400 kg Safe working Load: 200 kg System: BBB30 Max line size: 8 mm Mounting: 2xM5
The Seldén BBB30 Lead Block is a 30mm ball bearing block designed for lower loads on smaller boats or trim lines. It features stainless steel ball bearings for strength and smooth operation. Easy installation with 2 M5 screws.
Typically used for the control line of a main sheet track system.
BlockType: lead,single
SubType: lead single
Breaking Load: 400 kg
Safe working Load: 200 kg
System: BBB30
Max line size: 8 mm
Mounting: 2xM5
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4.8 ★★★★★
Based on 2100 reviews
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Product Reviews
★★★★★ 5
Wonderful
Format: Paperback
This should be mandatory for all people who are dating or want to get married. This will guide you through everything you will go through in a marriage.
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Reviewed in the United States on December 27, 2025
★★★★★ 5
Best Book on Improving Communication in Relationships
Format: Paperback
Such a helpful book, with concrete tips for improving communication in relationships. I find myself returning to this book whenever things become challenging in a relationship. I also attended a retreat based on the book’s teachings. Incredibly helpful.
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Reviewed in the United States on July 23, 2025
★★★★★ 3
Interesting, but not empirically validated, and written explicitly for straight people (why?!)
Format: Kindle
This one’s the 500-pound gorilla of the healthy-couple self-help genre, with thirty years in print, scores of Oprah appearances by the authors, thousands of therapists practicing the Imago framework.
The main thing that I need to tell you about this updated edition, from the year 2019, is that it does not mention or acknowledge the existence of queer or same-sex couples even one time. In fact, it really doubles down on the husband and wife stuff, takes gender roles pretty seriously, which is not a thing I realized we did anymore, except as a joke. Anyway, talking only to straight people is not too relevant to my interests, and while the conservative Christian viewpoint is pretty subtle in the advertising, just be aware of that PROBABLY NOT ACCIDENTAL omission going in, queer friends.
(This is made even more impressive by the fact that the heart of the Imago approach is based on childhood trauma, about the ways in which our parents caused us to suppress or hide or ignore parts of ourselves in order to be accepted and loved. Just let that sink in, because I’ve been reading this book for the past week and I am still reeling from the irony that people who have been thinking for the past three decades about the ways that parents cause trauma to kids by failing to accept parts of them have missed the VERY OBVIOUS AND RELEVANT EXAMPLE of queer folks.)
That aside, for me the book was a mixed-bag of some interesting and provocative ideas (I’d put these in the category of poetic notions, or interesting narrative ideas), alongside some really kooky 20th century neo-Freudian stuff (rooted in part in Freud’s theory of repetition compulsion.) I’m no fan of Freudian approaches, and after I started this book, I decided to see how empirically-validated this Imago approach is: based on what I found, there seems to be basically no evidence that this therapy is effective.
Am I glad I read it? I think so?? It was thought-provoking, with the pretty significant grain of salt that there’s not much evidence to support that Imago therapy is much better than doing nothing at all. Also, I feel a little gross giving my money to relationship experts who (in 2019!!)) won’t even acknowledge the existence of queer people, even when doing so would obviously strengthen their core arguments and provide better examples than some of the meek ones they give.
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Reviewed in the United States on November 18, 2021
★★★★★ 5
Great book!
Format: Paperback
I read this once through on my own and picked up a lot of great wisdom. Now my spouse are reading it together so we can answer the questions together. I'm excited for thought provoking discussions on raising our future child.
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Reviewed in the United States on November 4, 2020
★★★★★ 5
Now you know (some of) what you don't know
Format: Kindle
As I'm ready to embark on parenthood, I truly appreciated the insights offered by these parents. The learning has given me more confidence and preparation in managing expectations, handling difficult situations and being the ideal parent.
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Reviewed in the United States on February 12, 2019