8-piece metal puzzle unlock set with multiple classic unlock designs, derived from the traditional logical puzzle game Nine Linked Rings. Taking apart and reassembling the pieces repeatedly helps improve children's concentration and spatial thinking ability, and it can also help adults relieve stress and kill time. Made of sturdy and smooth metal, this compact and portable toy can be played during class breaks, business trips or at home, and brings great fun to parent-child interaction. Material: nickel-plated iron. OEM labeling, packaging replacement and sample-based customization are available.
Dimensions: 18*14*2cm, Weight: Approximately 90g per piece, Carton Size: 68*34.5*34.5cm (200 boxes per carton)
