Size is approx; 5.3 by 3.7 by 1cmAdditional product info; It prevents minor vibrations of the Apple Watch Genuine Charging Cable and protects the base of the cable. The back of the cover has a non-slip finish that fits easily on flat surfaces like desks!This product is exclusively for the Apple Watch Genuine Charging Cable. It cannot be used with other charging cables. The recommended age for this product is 15 years or older. Please store it out of reach of children under the recommended age.