Product specifications: Product size: 31,32,33,34,35,36,37,38,39,40,41,42,43 No. 35: Internal length: 22.5 cm / 8.86 inches No. 36: Internal length: 23 cm / 9.06 inches No. 37: Internal length: 24 cm / 9.45 inches No. 38: Internal length: 24.5 cm / 9.65 inches No. 39: Internal length: 25 cm / 9.85 inches No. 40: Internal length: 25.5 cm / 10 inches No. 41: Internal length: 26 cm / 10.2 inches No. 42: Internal length: 27 cm / 10.6 inches Sole Material: Rubber Category: Roller Upper material: super fiber leather Wheel type: double row Wheel material: PU Category: skates feature: 1. Adjustable wheel: retractable rear wheel for skates and classic sneakers. 2. Type: Auto button. The security foundation of the invisible button. There is a button at the back of the shoe, hold it down, open the wheel, hold the button, then push the roller to the sole and release 4. Be careful when starting to slip For safety reasons, children must be accompanied by an adult when wearing these shoes. For professional users, they must weigh less than 90 kg. For beginners, they must weigh less than 100 kg. The grinding wheel is a fragile product that can be replaced. The life of the grinding wheel depends on where it is used and how it is used.Wonderful gift ideas: hidden wheels. Glide and shine anywhere, anytime. Cool and easy to learn to drive, these shoes are a gift for kids. Suitable for skating / party / disco / dance / birthday / Christmas gifts. Size selection: Our size is a standard size, you can choose the appropriate size according to the size chart, it is recommended to choose according to your current situation. If your feet are slightly wider, it is recommended to choose a larger size. If you prefer to wear loose shoes, it is also recommended to choose a larger size. High quality materials: the outer layer of the shoe is made of highly anti-encrusting and hydrolysis resistant materials. The anti-collision head is designed to protect your feet while being waterproof and breathable for the comfort of your feet. The inner material is Hsinchu fabric and a breathable cotton insole. He is always very dry. Incredible shoes. Very creative: skateboarding shoes sneakers 2 in 1! His sole has a pair of hidden wheels. When you want to slip, just turn the heel switch and open the wheel, you can add these unique shoes to your friend's gliding team!. Comfortable interior space: The type of interior material is a breathable net, designed to achieve a high degree of ventilation and very comfortable. It does not rest on the foot and can better protect your feet. Rubber sole.Best Sellers Rank: See Top 100 in Sports & Outdoors. : B0923W6CRS. Manufacturer: LDTXH. Date First Available: April 9, 2021. Department: Girls. Package Dimensions: 13.11 x 10.55 x 4.45 inches; 4.17 Pounds.