Includes two identical units. Size: 2pack. Why choose a 2pack Built for convenience: two identical items let you keep a spare on hand to avoid interruptions. Ready for multiple locations: place one where you use it most and keep the other in a secondary location for easy access. Simplified replacement and maintenance: a worn item immediately without waiting for a single replacement to arrive. Practical for sharing or gifting: one for you, one for someone else, or one to keep and one to gift. What this listing provides Pack quantity: 2pack Two matching units supplied together Ideal when two identical items are required for routine use or backup How it solves common problems Eliminates downtime by providing an immediate spare if one unit is lost or stops working Reduces the need to hunt for a replacement at the last minute Keeps your setup consistent across two locations or two users Use scenarios Home and office: keep one unit at home and the other at your workplace to avoid transporting between locations. Travel and storage: leave one in a travel kit and one in your main storage so you are always prepared. Replacement and rotation: use one while the other is kept as a backup for maintenance or replacement needs. Buying notes Sold as a set of two identical units labeled size 2pack. Confirm compatibility with your specific application before . Simple, practical, and convenient: two identical units supplied together to reduce interruptions and provide immediate backup.