High quality riveter compatible with all multi-speed chains, including Campagnolo® 11 hollow pin chains. Number of functions: 6 Application: multi-speed chains up to 12 speed Imbus: 4 mm Body material: stainless steel Hook material: hardened steel Rivet material: crMo steel Dimensions: 7.5 x 2.3 x 1.6 cm Weight: 93 g