The subject of this Framework Contract is the supply, delivery and unloading onsite of approximately 821 brand new prefabricated interlocking C30 Concrete Blocks. These shall be divided as follows: i) 737*, interlocking blocks of size 1600mm by 800mm by 800mm with upper steel lifting anchors and 8 connection teeth on top of each block. ii) 20*, 1200mm by 800mm by 800mm interlocking blocks; with upper steel lifting anchors; and 6 connection teeth on top of each block. iii) 64*, 800mm by 800mm by 800mm interlocking blocks; with upper steel lifting anchors; and 4 connection teeth on top of each block. *All quantities are approximate.