£7.99 seems pretty reasonable for these weighted skipping rope sets at Lidl, they will be instore from Thursday 02/01/14.
Product Information :-
4 handle weights (2 x 50 & 100g) allow for individual performance enhancement
Ideal for speed jumping with a coated steel rope and ball bearing mounds
Includes adjustable workout timer with an easy-to-read LCD display
3 year manufacturer's warranty