Brighten up your nature play with this radiant Yellow Stackables Booster Pack — a vibrant trio designed to spark creativity and exploration. Featuring two luminous yellow resin cubes and one FSC-certified beech wood block, this set is perfect for expanding your Stackables collection. Children can build, balance, and experiment with light and colour, adding a cheerful glow to any nature play setup, discovery table, or classroom corner. Use them on their own or pair with specimen cubes for even more open-ended, nature-inspired play possibilities! Recommended for ages 3 and over. For the longevity of your specimens, we recommend enjoying these blocks on soft play surfaces. Drops from heights onto hard surfaces may cause the resin to crack, so a gentle play space helps keep them safe for years to come.