Specifications:· Shell material: plastic· Bearing: Stainless steel ring, silicon nitride ceramic beads (Si3N4)· Color: black, white or yellow (Optional)· Counterweight ring color: blue· Item size: 7.5 * 7.5 * 1.1 cm / 2.95 * 2.95 * 0.43 inch (L * W * H)· Item weight: 52 g / 1.83 ounce· Package size: 11 * 11 * 2.3 cm / 4.33 * 4.33 * 0.91 inch (L * W * H)· Package weight: 85 g / 3 ounce.Features:1. The bearing cap is recessed for easy control.2. Spins average 1-2 minutes depends on your power.3. Use silicon nitride bearing beads, hardness and smoothness greater than white zirconia ceramic beads and stainless steel beads.4. Steel beads will be affected by thermal expansion and contraction, it will affect the life of steel ring, ceramic beads will not.5. Steel beads will rust and deformation after used a period of time, ceramic beads will not.Usage:Hold spinner in one hand and use the other hand to spin it rapidly,and keep it spinning indefinitely by using small continuous strikes.Spinner can start and stop spinning by one finger.Package list:1 * Hand spinner Tricyclic products are only sold by Shadow Blue, please buy it accurately.
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