Secure-Cap Certificate Storage Tubes

Each tube measures 35.00 x 3.50 x 3.50 cm (13.76 x 1.38 x 1.38 inches) and is built from corrosion-resistant stainless steel with a smooth, reflective silver surface. The defining feature is the precisely fitted cap — machined to match the tube’s outer diameter — which creates a flush, gap-free seal upon closure. This ensures documents remain fully enclosed and immobile inside. The set comprises two identical units, supporting parallel categorisation strategies. Suitable for long-term storage of formal documents including birth certificates, degree parchments, and notarised records, the design balances archival reliability with everyday usability in hybrid work environments.