it is written 100kg on the post but after receiving the shipment i found that 100kg is for 2 posts and not each , which means it cannot support net at 61 inch, the pulley on top of ths post is 2 inch higher ( i got 10 pair of post) which i have to remove and adjust it with appropriate attachments. i had to buy 50Kg weight for each post ( means i bought 1000kg additional weights) to make the post stable and hold the net at appropriate height. Overall this was not a good buying experience for me. Note when it is sold by Yonex and says 90Kg that means 90kg per post example https://www.yonex.com/badminton/badminton-net-pole-bwf-approved-ac355

Very good seller and products. I recommend!