About This

• Abundant Quantity & Vibrant Rainbow Colors: This value-packed set features 60 acrylic cubes (2.52.52.5CM) in 10 vivid, long-lasting colors—perfect for group play, classroom activities, or endless solo creativity. Crafted from high-quality, non-toxic acrylic, each acrylic block is polished to a smooth, glossy finish, shining like real crystal cubes or gem blocks that instantly captivate children.
• Dazzling Light Reflections & Sensory Joy: These rainbow acrylic blocks produce stunning light effects when exposed to sunlight or a light table! Ideal for sensory light table play, color mixing, and safe to use as light up cubes for bathtub play (water-resistant design). The colorful glow sparks curiosity and sensory development, keeping children engaged for hours.
• Endless Stacking & Building Possibilities: More than just gem blocks, these acrylic building blocks are designed for stacking, balancing, and constructing elaborate creations! Compatible with grimms rainbow, wooden gem blocks, jelly building blocks, and our other rainbow stacker toys, they boost fine motor skills, spatial awareness, and creativity in 1-5 years old. Stacking rocks for 1-3 years old and rainbow stacking toy enthusiasts will love the limitless building options with 60 pieces.
• Child-Friendly & Age-Appropriate: Safe for 1 year old and up, these child-approved acrylic blocks are perfectly sized for small hands to grasp, hold, and manipulate. Boys and girls aged 2-5 will treasure them as play gems, using them for sensory cubes activities, pretend play, or as colorful blocks to practice color recognition and problem-solving skills.
• Perfect Gift for Every Celebration: Searching for a standout birthday, holiday, or special occasion gift? These rainbow building blocks—also known as jelly cubes sensory toys or crystal blocks—make a memorable present for children. They pair seamlessly with other acrylic shapes, stacking cubes, or transparent toys, amplifying playtime fun for the whole family to enjoy.