Traffic road-block,1) adjustable trestle can be opened and closed2) anti-corrosive and sharp steel nails on the trestle 3) glue covers nails to ensure safety4) the air pressure of the tire can separate the nail from the trestle5) gas released within 30 seconds6) max intercepted length:5m7) intercepted width:185mm8) total thorns:120/170pcs9) thorn length:40mm10) weight:17kg11) pedestal material: PA + PE12) thorn material: Stainless steel tube
Traffic road-block,
1) adjustable trestle can be opened and closed
2) anti-corrosive and sharp ste