Designed to attach to most bike frames, the Bento Pack top tube bag features a transparent phone case compartment which allows you to use your mobile while on the move. Beneath is a second compartment with dividers to store items such as your keys and credit cards.Durable nylon/TPU construction2 CompartmentsFits phone sizes up to 6.7” (16.5 x 7.8 x 0.9 cm)Top Tube Diameter: Ø35-73 mmHead Tube Diameter: Ø30-50 mmCapacity: 0.85LDimensions: 20 x 8.5 x 9.5 cmWeight: 159 g_