The Proto Primo Loader is an excellent, high quality product. This product boasts an 8-10 balls per second feed rate and no batteries are required to do this. This product is the first of its kind to include a positive feed shelf designed to relieve pressure on paint reducing jams and increasing feed rate. Powered by the minimal agitation of the gun the Primo Loader helps sort and funnel as you shoot for a consistent vertical feed. Reloading is easy thanks to the clear spring lid. The large opening works well with proto alpha pods for the ultimate paint carrying system. The large capacity durable shell holds 200 paintballs and makes for ease of cleaning and maintenance.