Presentation packaging, anodized aluminum, length 120 mm High-quality sleeve for adapting the seat tube diameter to the outer diameter of a seatpost, with 2 slots "G.Shim shimDoes your seatpost not fit the frame? With the "G.Shim" shim from BY,SCHULZ, frame tubes can be adapted to the outer dimensions of thinner seatposts. The shim is manufactured with an oversized fit and is double-grooved. This means it stays in the frame tube and not on the seatpost when the seatpost is removed. It is made of high-quality anodized aluminum and is available in seven different diameters. Diameter 34.9 mm Thickness 1.65 mm Main color black Reduce to 31.60 mm Type/kind Article Version shim