Feature : One bag two usage ,you can use as Arm band bag ,but also can use as Wrist bag Durable and lightweight sport bag will keep your samrtphone safe and protected. Small size but bag capacity,main and deputy bags design independently,classify your goods. It perfect for GYM,Jogging,Running, Outdoor Accessories. It suitable for 6.5''/7.3'' or below 6.5''/7.3'' phone bag size:190mm*90mm/200mm*100mm Arm and wrist size: 14CM-38CM can be adjusted Applicable reference models: For huawei Mate20/20pro/ p20 pro/p10 PLUS/mate10/Glory 8X/8c/8play/7i/Maimang 7// for Samsung S10/S10+/J4+/A7/note9/note8/A8 star/S9+/ S8+/for iphone 11 pro XS Max/XR/8P/7P/6P/C9/s7edge/A9/A8/S7edge+/for Samsung Mega 6.3//OPP R17 pro//8/Red Rice 6X/note6/note5/for G6/ etc. 5.5-6.0-6.3-6.5-7.3inch mobile phone models of the same size are common.