Size is approx. 10 by 3.5 by 1.0cmThis is a strap with an acrylic charm attached. There are a total of 6 types. One of the 6 types is randomly included. You cannot choose the type. – There are small parts, so please ensure that small children do not accidentally swallow them. There is a risk of choking. – Do not wrap the string part around your fingers or other body parts. This is dangerous as it can stop blood circulation. – Do not place this product on resin sofas, seats, tiles, etc. Prolonged contact may cause color transfer. – Please be aware that we are not responsible for any damage or malfunctions that occur to mobile phones, digital cameras, portable game devices, etc., when using this product. – Do not pull or bend the attachment part in an unnatural direction.