Crain 605 Deluxe Knee Kicker has a high profile body that more easily spans over stretcher tubes and a thicker natural rubber bumper for comfort and durability. The recessed trigger provides length adjustment in 5 settings from 18 1/2" to 22 1/2". The visual pin depth dial provides nine different depth settings for various carpets. Power rods extending through the pin plate provide support and improved force transfer to the carpet. The Crain deluxe knee kicker gripping head includes three nap grips and a pin plate with 16 hardened steel pins. It comes with gripper cap. Bumper, nap grips, and pin plate are replaceable.