Creative Specialties DN7075 7 Inch Safety Grab Bar Attachment for Tubs Part No. DN7075 Features: #Adjustable locking mechanisms that attaches easily to most bathtub walls from 3" to 5-1/4" thick #Simple clamp means no difficult twisting motion during installation #Two textured grab areas at different heights for maximum security and flexibility when entering or existing the tub #No tools required #Tested to withstand up to 350 lbs.