Specifications Brand: ROCKBROS Model: 017-1BK，017-3BK Colour: Black Weight: approx. 109g Material: Carbon fibre + TPU Water repellent Large capacity TPU Sensitive touch screen: With sun visor; with headphone jack; with headphone jack Suitable for: Mobile phones up to 6.0 inch such as iPhone X 8 7 6s 6 plus 5s / Samsung Galaxy S7 Note 7 /HUAWEI P30 PRO etc. Easy assembly: With Velcro fasteners, the frame bag is very easy to assemble and disassemble. It uses 3 velcro fasteners to fix and is stable. Note: To fit multiple bikes, the straps may be too long. You can cut the straps yourself. With headphone jack: There is a headphone jack in the mobile phone pocket. You can also listen to music while riding. You can also charge your mobile phone through the hole. Note: If the headphone jack is on the top of the mobile phone, the headphone can pull out from between the zips.