tracker protector is an essential accessory for any cyclist concerned about bikes theft. This protector hides your tracking device, making it difficult for thieves to detect. It is made from sturdy materials that provide excellent protection. The protector is easy to install and ensures your tracker stays securely attached to your bikes. Features -Color:Black -Material:Plastic, aluminum alloy -Size:15.00X7.50X7.50cm/5.89X2.95X2.95in(water bottles cage) -Size:8.00X4.00X1.00cm/3.14X1.57X0.39in(protective case) -Concealed antitheft design: the hidden holder design helps deter bicycle theft, ensuring the safety and security of your bikes. -Accurate tracking: with technology, this holder offers precise tracking of your bicycle, facilitating quick recovery if lost. -Enhanced antitheft features: this holder includes antipry and locks, providing robust protection for your bicycle against theft. -Adaptable for all cycling conditions: suitable for both city and mountain biking, this antitheft equipment offers comprehensive protection for your bicycle in any environment. -Quick and easy installation: the antitheft equipment is designed for easy installation with minimal steps and no need for additional tools, ensuring a effortless setup. Package list: 4 x protective case 4 bottles cage 8 x wrench 16 x screws