Athena Diabolo We've found this diabolo to be great for high speed performance. Powering routines can be much faster without running the risk of cup deformation. Specifications: Weight: 7.1 ounces (200 g)Length: 4.75 In (122 mm) Diameter: 4.25 In. (104 mm) "Each diabolo includes a handstick set, string and basic instruction sheet."