All-in-One Tube Breaker, Stainless Steel, for 6,7,8, 10mm OD tubes

All-in-One SKC Tube Breaker opens glass sorbent tubes cleanly and safely. Stainless steel, can be used with 6,7,8, and 10-mm OD tubes. Heavy-duty cap rotates to expose the desired size opener and to retain glass tips to be discarded.