Features: High quality Sensory Enhancement Design: Mini finger skateboard accessories encourage and enhance children's senses, exercise hand and brain coordination, stimulate hand-eye abilities, and promote DIY customization of finger toys. Qualified Material: Made with qualified alloy bearings, smooth and polished without burrs, wear-resistant, non-toxic metal materials to improve play experience. Easy to Assemble: Finger skateboard wheel set includes all necessary accessories for easy assembly and replacement, extends the service life of your finger skateboard toy. Universal size fits most finger skateboards. Durable Finger Skateboard Spare Parts: Durable wheel brackets are ideal replacements for mini finger skateboards, extending product life while providing fun and skill development for kids' finger dexterity, suitable for indoor play. Color: Silver Material: Zinc alloy Size: 29mm Package Contents: 1 x Small screwdriver (random color, no specific color available) 10 x Truck sets (includes screws, wheel nuts, spacers) Note: Light and display differences may cause slight color variations between the image and actual item. Measurement error allowed is +/- 1-3cm. Only the above package content is included; other items are not part of this sale.