Product Features 1. 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 parameters Strap type net weight: 14.5g Strap type gross weight: 16g Strap type product size: 56*40*12mm (strap length 190mm) Strap type packaging size: 140*80*10mm bagged Screw type net weight: 20g Screw type gross weight: 22g Screw type product size: 75*55*10mm Screw type packaging size: 140*80*10mm bagged include: 1set For Smarttag2 bracket Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!