Spintastics Manta Ray, Wooden Axle, Butterfly/Wing Shape, Designed by World Champion, World Yo-Yo Champion Dale Oliver designs the Manta Ray by Spintastics. This Wooden-axle Yo-Yo is a Butterfly Shape which is also known as Wing Shape Yo-Yo. This type of design enables you to create string tricks with ease. The material we used is ABS plastic which is one of the strongest and safest plastics for yo-yos. It also has the "Metal Speed Rings" to add extra spin times every throw! This is a take-apart design - it means you could open the yo-yo if your strings got tangles and knots and for maintenance purposes. Unlike the other yo-yos in the market, you cannot take it apart. Specs: Weight: 54.7g/1.93oz Width: 32.1mm/1.26in Diameter:56.8mm/2.23in Axle: Wooden