• Safe material: Tetris blocks made of high-quality ABS material, non-toxic and wear-resistant. Smooth surface and burr-free, safe for children. • Educational toys: Tower balance blocks design with bright colors that help children stay away from smart devices. Promotes communication and enhances social skills. • Training skills: This balance stacking toy helps children recognize colors and shapes, cultivating imagination and creativity. Develops cognitive skills, logic, basic physics, and fine motor skills. • Two game modes: Single-player challenge mode that exercises patience and balance, and two-player game mode that encourages social interaction. • Perfect gift: Russian building blocks suitable for children and adults, help relieve stress. Perfect for parties, barbecues, camping, or a day in the sun.