Features: 1. Ukulele, small guitar finger sand hammer. 2. Put it on your finger when you use it. 3. The sound is crisp and the accompaniment is played. Specifications: Material: plastic Color: Black Size: 40mm*25mm*25mm/1.57*0.98*0.98'' Net weight: 9g Gross weight: 11g Notes: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding.