Adjustable Crib Rail Teether Attaches easily to either round or square crib rails and will not slide or pinch little fingers. Removes easily and can be placed in the top rack of a dishwasher. Package includes: 4 x 13.4” long (34cm) rail covers and 20 straps and will cover one length of a standard crib rail up to 2.6” (6.5cm) wide in diameter. Cut to size, as crib and convertible crib dimensions can vary.