Mini squib trip - 2 3/4in. x 1 3/4in. x 5/8in. 200# working load capacity, squib or manual operated. Chrome moly hook and latch. Recommended squib De La Mare D60-1/4 or 1/2 or MP Associates T12-1/2. When we tested these, they broke at 1100 lbs. This design has been around in special effects forever. We redesigned the latch geometry and make the hooks and latches out of heat treated 4130. They have an adjustable replaceable spring plunger.