Sheave Diameter is approximately 2"

Max line diameter is approximately 3/8"

Overall Length is 4-1/2",  Overall width is 1".

We have tons and tons of used Sailboat and Beach Cat parts.   Everything from hulls to sails and all the little stuff that's hard to find.  If you are needing something for you Hobie, Nacra, Prindle or Solcat and don't see it on auction,  send me an email and I will be glad to list it for you if we have it.  Please remember all our Cat parts are used and expect them to show signs of use.  Most could stand to be cleaned or polished.   If we see any noticeable defects, we make every effort to point them out.   Happy to combine shipping for multiple purchases.