T-Top aluminum Single clamp on boat fishing rod holder fit 1.5″, 1.875″, 2″ horizontal or vertical Pipe -Made of high quality, marine-grade aluminum extrusions and cold-drawn tubing -Clamp size: 2.125″/54mm, rubber liners to fit 1.5 inch/38mm, 1.875 inch/48mm, 2 inch/51mm tubing -Rubber insert to protect your fishing rod from any wear against the metal surface -Inside diameter is 1 3/4″, Length is 10 1/2″ -Can be mounted to vertical or horizontal bars -Clamp turns and locks in place every 45 degrees -Easily mounts to T-Top or other hardtop, tower, radar arch, rail, or any structure made from 2″, 1-7/8″, 1-1/2″ pipe -Holds up to 1 fishing rod What is in the box -One Rod holder -One Hex key -Rubber inserts 1.5″, 1.875″, 2″ Weight: 1.8lbs/0.9kg Package: One carton box 11″x6″x2.5(28167cm). Made of high quality, marine-grade aluminum extrusions and cold-drawn tubing. Clamp size: 2.125, rubber liners to fit 1-1/2″, 1-7/8″, 2 tubing pipe. Can be mounted to vertical or horizontal bars. Clamp turns and locks in place every 45 degrees. Rubber insert to protect your fishing rod.