Japanese designer MAKIO HASUIKE focusses on making lightweight functional items. This fits the bill being very light, 290g, and with an ingenious locking mechanism so it extends to around 115 cm long.

290 g 
  Tracked post UK  £3.80   EU / World 1 / World 2 / World 3 (USA)  £14.50 / £30 / £35.60 / £24.40

Dispatch time stated 3 working days to allow grouping orders for posting, will often be sooner than that.
Buyer welcome collection from central Bristol, easy to park and outside CAZ.