The Lyman 4500 Lube Sizer comes with a 110-volt heater for a faster and easier job. The sizer is designed to lubricate and also size cast bullets. For this particular sizer, hard lubricants are required.Other features include the one-piece, solid-bottom long handle that provides more efficient leverage; a gas check seater; and ergonomic ball grip. Included in the low price, buyers also receive one stick of lube, although more can be purchased. Keep in mind that sizing dies and top punches for the 4500 are interchangeable with the RCBS Lube-a-Matic 2.