60-100 Pcs Straight Push Pneumatic Hose Fitting Couplings Set PU 4/6/8/10/12MM Extender Plastic Trachea Connector

60-100 Pcs Straight Push Pneumatic Hose Fitting Couplings Set PU 4/6/8/10/12MM Extender Plastic Trachea Connector

Aliexpress UK