Brand New Rhino SafeClamps Lockable Roof Bar Ladder Clamps No keys, clamps fully working. The Rhino SafeClamp is a revolutionary universal safe clamp design for the safe transporting and securing of ladders onto roof bars and racks. The Rhino SafeClamp is universally fitting to most roof bar and rack profiles, and most ladder types up to 3 tier types (max ladder weight 40kg). Manufactured from tough composite plastic using a stainless steel hook and accredited by 20g crash & life cycle testing, ensures years of dependable and corrosion free use. The innovative one touch clamping method ensures that the operation is FIVE times quicker than traditional screw down ladder clamps.