Milwaukee Twins Helmet Lock Securely attach the Milwaukee Twins Helmet Lock to any 7/8 round tube and protect your helmet with confidence. It features a durable, heavy-duty solid tumbler lock, reinforced with one-way mounting screws to ensure it remains tamper-resistant. Designed for resilience and reliability, this lock is an indispensable safeguard for your gear. Formerly offered under the J&P Cycles brand. Features: Clamps securely to any 7/8 round tube One-way mounting screws Heavy-duty solid tumbler lock 2 keys