• These cups are removable and rotatable. On the factory cup there is a white nylon locating ring on bottom of cup. • BVC ATS cups have the ring incorporated into Better Vacuum Cups cup. No screws or hardware needed. • 25.4x132x48mm - One inch size ATS vacuum cup in 48mm height • At 1” wide, the performance of this cup is perfect for yBetter Vacuum Cups door frames!
