Mudguard The bike saddle bag is equipped with a mudguard, which reduces the splashing of mud, rainwater and sediment from the rear wheel during rainy days. Tail Light Compatible There is a tail light hook on the back of the bike storage bag, which can be used to hang the tail light (tail light not included). Premium Quality Material The saddle bag is made of PU hard shell and EVA shock-absorbing material, which protects the contents of the bag even in the event of an accident. Large Capacity Size 9.25*4.33*3.94 inches,1.3L large capacity can store a variety of bike accessories as well as daily necessities. [LARGE CAPACITY]: Size 9.25*4.33*3.94 inches, 1.3L large capacity can store a variety of bike accessories as well as daily necessities, such as small repair tools, mobile phones, mobile power, refill fluids, keys, cards and so on. [PREMIUM QUALITY MATERIAL]: The saddle bag bicycle is made of PU hard shell and EVA shock-absorbing material, which protects the contents of the bag even in the event of an accident. [ELABORATE DESIGN]: The bike seat packs is equipped with internal compartments and elasticated webbing, which makes the items inside the bag orderly classified and avoids the items knocking each other. At the same time, the road bike saddle bag is equipped with a mudguard, which reduces the splashing of mud, rainwater and sediment from the rear wheel during rainy days. [EASY INSTALLATION]: Seat bow mounts just need to be aligned in the right place and the bottom screws tightened. The bicycle bag buckle design allows you to quickly attach and release the harness in seconds. Hook and loop help hold the harness in place and prevent it from shifting. [SAFETY DESIGN]: There is a tail light hook on the back of the bike storage bag, which can be used to hang the tail light (tail light not included). There are silver reflective logos on the sides and back of the bag, making you safer when riding at night.