• Silicone
• Colorful rings --a great present for on their birthday, new year or daily life, they will like it very much,rings stacking
• Creative stackable rings--put the stacking ring in the right place in order to the hands-on ability,stacking ring
• Stacking rings --give your and your families happy time, also, leave your a happy childhood,creative stacking rings
• Stackable ring--both interactive fun and educational, not only it could offer entertainment, but also encourage imagination and thinking abilities,silicone stacking ring
• stacking ring--the stacking game stimulates and improves cognitive ability of shapes and color, stacking rings