uxcell 1/4" PT Male Threaded Pneumatic Exhaust Noise Blue Plastic Silencer Muffler Product Name : Pneumatic Muffler;Male Thread Diameter : 12.5mm/ 1/4" PT Overall Size(Each) : 65 x 20mm/2.5" x 0.8"(L*Max.D);Material : Plastic Main Color : Blue Net Weight : 5g Package Content : 1 x Pneumatic Silencer Muffler