Henry Block and Pulley was created to produce the only cable sheaves and small blocks made in the USA. Having sold many thousands of these items over the past 12 years, we have seen the inadequate quality and design of competitor products. We set out to do it the right way by making small cable sheaves with proper groove shapes designed to maximize cable and sheave life. Block products are soon to be offered that will have superior fit and form and will, of course, incorporate the current sheave products we offer.