Air Venturi pellet pen .177 caliber, holds up to 20 pellets Correct pellet orientation every time Fastest loading & shooting Maximum stealth while hunting Holds 20 pellets Load your gun even while wearing gloves No fumbling with awkward pellet containers in the field Designed for .177-cal breakbarrel air rifles and pistols Patented Any .177 pellet fits! Load pellets head first. Pellet tins rattle, sometimes the lid comes off and you have to put your gun down to open them. The Pellet Pen is so much easier. Keep it in your pocket, pull it out and load a pellet. No fumbling. Easy to use, easy to carry.