Sportsheets Under the Bed RestraintsWith these Under the Bed Restraints you can turn any bed into a bondage playground!.. Set up this restraint system in seconds. Simply slide the restraint straps under the mattress for an instant bondage bonanza Includes: Four cuffs, four 60 inch restraint straps and one 60 inch connector strap Fits any size mattress. Materials : fabric webbing Size : adjustable adjustable Power : None Required