describe:material: metalColor: various colorsPackage Included:1* Sprocket Spinning Top Toy Ideaadvantage:1: DIY without disassembly and assembly, precision CNC cutting process + all stainless steel + full mechanical sense2: It can help to quit bad habits such as inattention or smoking. You can use it to replace anxiety by simply spinning the fidget spinner.3: The chain top toy is made of high-quality stainless steel, which is environmentally friendly and safe, and can be disassembled to exercise hands-on ability. Precision machined parts make this fidget toy unbreakable.4: This hand spinner adopts 2 silent bearings, bringing you a super smooth spinning experience and long-term durable use.Comment:1. Manual measurement error is 2-5g. Please don't mind your substitutions.2. Due to the difference between different monitors, the image may not reflect the actual color of the item. Thank you so much3. The SKU color is the product packaging color