Product Features1. This product adopts 3D printing technology, which is small and easy to carry.2. It is highly concealed. It can install the For Smarttag locator under your bicycle seat to keep track of the location of your bike anytime and anywhere.3. The product is divided into screw type and strap type. The screw type is fixed to the back of the seat with screws. The strap type can be fixed in the front and back of the seat, and can also be tied to other places.Product parametersStrap type net weight: 14.5gStrap type gross weight: 16gStrap type product size: 56*40*12mm (strap length 190mm)Strap type packaging size: 140*80*10mm baggedScrew type net weight: 20gScrew type gross weight: 22gScrew type product size: 75*55*10mmScrew type packaging size: 140*80*10mm baggedinclude: 1set For Smarttag2 bracket