This convenient smartphone holder can be attached to bicycles and motorcycles^^* It automatically locks your smartphone when you place it, and it's super easy to release with a one-touch button! ◆ The mounting ring size is approximately 3cm. If it's loose, please adjust it by inserting the included rubber sheet. ● Securely fixed with a 4-point grip, providing peace of mind against shaking while riding. ● Rotates 360 degrees, making it easy to use in both portrait and landscape orientations. ● Easy to install without tools. Compatible with both bicycles and motorcycles. Great for touring, commuting, and even quick shopping trips. It's the perfect item for those who want "easy attachment/detachment and stability!" ※ Please check the size in the image♡ ・Please note that there may be slight variations due to amateur measurements. ・Due to being a foreign product, the construction may be less refined compared to Japanese products, but we offer convenient products at a lower price! ・The color may appear slightly different depending on your monitor, but we try to photograph it to be as close to the actual product as possible. ★ Discount available for combined shipping ★ 100 yen off for 2 items 200 yen off for a total of 3 items 300 yen off for a total of 4 items Instant purchase is welcome ◎ Please comment before purchasing if you are buying multiple items (*'ω'*)