Redding Competition VLD Seating Stem Default:7mm The rubber and metal lens Store and organize six The rubber and metal lens cap sets are direct replacements for your NXS Rotary case tumbling provides a real advantage over other methods of case cleaning as the stainless steel media pins are able to get into areas that other media such as corn cob or nut shell simply cannot reach Redding also makes the following accessory VLD seat stemss for use with many popular VLD style bullets The VLD Seat plugs have a proper internal contact angle and generally a smaller diameter to engage a VLD bullet in a more effective position for proper seaing