1. Aluminum acorn axle nuts. Color: BLACK ANODIZED Size: 3/8" X 26T SET OF 4 - no retail packaging. Brand new, never mounted. These will work as axle nuts for show bikes - BUT, it is recommended for safety that these be run outboard of regular steel axle nuts if you plan to ride the bike. 2. For Bike Type:BMX Bike, BMX Bike - Old School, Cruiser, Hybrid/Comfort Bike, Kids Bike IMPORTANT: There is no substitute for MEASURING your bike before ordering. While there are some rule of thumb standard for bikes from a specific era, there are no absolutes. Save yourself time and money and MEASURE first, order once. 3. If you need to return an item, please contact us within 30 days of your order for a full refund. All returns must be in the same condition it was delivered, new & unused, and in the original packaging. Buyer pays for return shipping. Returns must be in resalable condition. If the part is used there is a possibility that you will not receive a refund, as we can not sell a used item. In order to avoid unnecessary troubles caused by returns, customers have the responsibility to ensure the correct product information. Thank you for your purchase. Have a good day! Pictures are for reference only, subject to physical objects. Thank you Best wish!