Product Description Specifications:Material:Stainless steel, NylonCompatibility:77designz Freesolo™ V2 chain guide77designz Oval Guide™ Chain GuideManufacturer Number:1000130 Contents:1 x 77designz 0.5 mm spacer1 x 77designz 1.0 mm spacer1 x 77designz 2.0 mm spacer1 x 77designz 3.5 mm spacer Manufacturer: 77designz UG An der Kolvenburg 8 48727 Billerbeck Germany info@77designz.com