Features: It can help you work on positions, balance, core strength, and much more! Great for spinner jump training Round about about 4-inch (100 mm) diameter design for safety Low profile (just over 0.5 inch thick) for jump training Easy to travel with (especially with optional case) Anti-slip checker plate rubber surface on front and back Grips and helps to prevent damage to floors. Steel disks for strength and durability Metal ball bearing for smooth spinning and strength Welded for strength and safety Made in Canada with US and Canadian parts! The optional neoprene soft case is the perfect companion to your iSpinner: Designed to perfectly fit the iSpinner 4" Made from high quality neoprene material with a zippered opening Protects your iSpinner from getting debris and dirt in the bearings Protects other items in your skating bag or purse
