KRESSF training wheels are additional wheels mounted on the rear wheel to maintain the balance of the bike. It is a good helper for bicycle beginners to reduce their fear and gradually learn to keep the bike in balance Specification. Material: Steel + Plastics + Rubber . Color: Black, Purple,Blue,Red and Pink . Size: Wheel: 4.33 inch*4.33 inch*0.98 inch /11cm *11cm*2.5cm Bracket Arms: 10 inch*1.1 inch / 25.4cm*2.8cm ?Fit: 12/ 14/ 16/ 18/ 20 inch Bicycles . INSTALLATION NOTES: 1.Insert bolt through the wheel, washer and training wheel arm. 2.Attach and tighten washer and nut, you will require two wrenches to tighten this propeily. 3.Remove rear axle nut from the bicycle wheel axle. 4.Insert axle though locking brace and fix the raised point to the bicycle frame ends . 5.Determine desired height of training wheels when attached the training wheels should have about 0.5-1cm (1/5 to 3/5in) space from the ground. 6.Tighten axle nut with adjustable wrench . 7.Repeat for another suide.

? Please contact us if you have any problem, we will solve it for you as soon as possible.Thank you!. ? MATERIAL: double bearing Pu Wheel, quiet and durable, wide triangular structure support, strong bearing capacity. ? FUNCTION: help beginners to use the bike more safely. ? Package Includes:2 Wheels 2 Bracket Arms ?2 Shoulder Bolts ?2 Locking Nuts ?2 Stop Block? 2 Gasket?an installation instruction. ? Suitable: universal training wheels are suitable for 12/ 14/ 16/ 18/ 20/ inch single-speed bicycles for children/except HUFFY brand bicycles.

Vehicle Service Type: Bicycle. Item Diameter: 4.33 Inches. Material: Rubber,Steel. Date First Available: May 9, 2020. Best Sellers Rank: #19,060 in Sports & Outdoors. Customer Reviews: 4.0 out of 5 stars 276 ratings 4.0 out of 5 stars. : B088DCS7M6. Part Number: ?1-0003AAA. Manufacturer: ?KRESSF. Suggested Users: ?Boys, Girls. Material: ?Rubber,Steel. Color: ?blue. Package Weight: ?0.82 Kilograms. Item Package Dimensions L x W x H: ?10.4 x 7.2 x 0.4 inches.