https://rwo-marine.com/store/blocks/28mm-ball-bearing-block-range/r5209-28-ball-singles-interlinkd-pk-size-1/
R5209 - 28 Ball Singles Interlinkd (Pk Size: 1) - RWO Marine
Oct 28, 2020 - Series 28 stainless steel ball bearing single 2 way block, maximium line size 8mm, maximium working load 140kgs
ballsinglespksizerwo