GRIMM'S Wooden Building Blocks LEONARDO (100 pieces). Let your imagination run wild with these cool, colourful, and creative long wooden blocks! These 18 cm long blocks are perfect for building domes, stairs, or bridges which can stand without the use of glue or a nail! Tons of fun and lots of opportunities for kids to get creative and encourages them to play with others. Perfect for kindergartens, schools and other play groups. Playing with building blocks help children develop fine motor skills and spatial thinking skills. Set includes a wooden box filled with 100 thin blocks in different colours. Instructions for building a dome and bridge are included. Material: FSC Lime wood, non-toxic water-based paint, and plant based oil finish. Wooden box size: 9 x 9 x 9 cm. Block size: 18 x .3 cm. Recommended age: 6 years +. All Grimm's products comply with the European standard for toy safety, CE marked and EN 71 certified. Sustainably handmade in Bosnia.