Machined aluminum handle bar block. 5" long X 2" Wide X 2" Tall. Comes Standard with Four 3/8 X 16 Tapped Holes with Bolt Centers Of 2 X 7/8 Or 4 Inches Center To Center. These Were Designed To Fit Larger Mini Bikes Like Harrison's and Larger Ruttman's. Will Fit Other Bikes But May require Drilling And/ Or Other Modifications. Comes in 5 Different Engraved Options ( Note: Custom Engraving is Available. Call the Store For Details)