It is built of strong but lightweight rectangular aluminium construction with mobile weight and catches system for adjustment.It has round upright chrome plated steel tube with sliding aluminium tubular powder coated pipes with push buttons to raise and lower the board to the desired height adjustment.The height is adjustable at 30”, 33”, 36”, 39” & 42”.Has a double ribbed lightweight fiberboard and also features specially designed ABS plastic molding system for easy slip-in adjustment of gate board.Can be easily detached for stacking and storage in lesser space and for convenient shipping in a carton. Our hurdles are CE certified.