✨ Stack, Shine, and Learn! ✨ Hand-sanded acrylic for smooth, safe play! Ignite creativity with 16 vibrant colors! A delightful present for birthdays and holidays! Your happiness is our priority! Transform light into a magical playtime! 16 vibrant colors Acrylic material 5x2.5x2.5 cm size The Rainbow Crystal Acrylic Strip Blocks set includes 16 beautifully crafted, hand-sanded gem cubes designed to enhance sensory learning and stacking skills in children aged 3 and up. Each block measures 5x2.5x2.5 cm and is made from durable acrylic, providing a safe and engaging play experience. Perfect for educational play, these blocks create stunning light effects and colorful shadows, making them an ideal gift for any occasion.