The original and world's most popular hand-held priming tool. Fast and economical hand held priming with unmatched feel and accuracy. Lee New Auto Prime uses inexpensive Lee Hand Prime shell holders only. Ships with 1 folding primer tray, 1 small and 1 large priming assembly. Includes a FREE molded storage box to keep your priming tool shell holders and tool together. Molded storage box holds up to 18 shell holders.