The Ello Creation System Bundle is a vintage plastic interlocking blocks set manufactured in China in 2002. With approximately 1.7 kg of pieces, this set is designed for children aged 5 and above and features a construction theme, specifically focusing on building underwater structures with the aquaria set name. The unique features of this pre-used set make it a valuable addition to any construction toy collection, offering creative play opportunities for young builders. The Ello brand ensures quality and durability, making this set a timeless favourite for those who enjoy imaginative play. almost 2kg- see last 2 pics for weight good condition, pre used and some pieces have surface scratches,but no broken parts