This lightweight Public wooden bicycle crate features a spring-loaded quick-release for easy attachment and removal from your rear rack. It securely clamps onto most standard rear racks and folds flat when not in use. Designed to fit all rear racks that we sell, this crate adds both practical utility and a timeless, classic look to any bike. Specs Spring-loaded quick release Measures 11.75"L x 15.75"W x 6"H Zip ties must be used for compatibility with Porteur Rack Racks not included