Battery Protectors

It makes the hatch close by simply pushing it.It works with both a recessed or projecting knob. Pull the knob to open the hatch.Nylon frame and stainless steel springs.A = Round S knob.A1 = Round knob with Spacer.B = Rectangular knob.B1 = Rectangular knob with Spacer.C = Convex knob.C1 = Convex knob with Spacer.