It is designed to add exactly 1 ball to the stack when resting on a ball in the chamber

The edging utilizes silk banding so that it's easy on the finish yet prevents fraying

Front mesh pocket

That's completely possible at a full custom shop like Adrenaline

adrenaline 16 oz coffee tumbler pew pew hide-notify It is designed to addThis premium Adrenaline coffee tumbler is made from stainless steel and black coated. We then burn the coating off with our artwork revealing the stainless below (so unlike aluminum it will not oxidize). Features include: Adrenaline Pew Pew design 18 8 stainless steel construction with powder coated matte finish Copper lined double wall insulated with condensation free surface Keeps beverage hot for 4 hours and cold for 12 hours Ergonomic body grip