bids are invited for breath plus portable oxygen can 5 inch fpv propeller set - gemfan 5 inch and 5 blade fpv propeller sets vary by specific model, such as the gemfan vannystyle 5136, gemfan freestyle 5226, multi-blade , 3.5 inch fpv propeller set - standard 3.5 inch fpv drone propeller sets such as the popular feature a 90 mm diameter, 3-blade or multi-blade layout, and durable polycarbonate construction , epson 6270 printer head - the epson eco tank l6270 printhead features precision core technology, 400 nozzles for black, and 128 nozzles per color , protection shield - standard anti-riot protection shields are made from high-grade clear polycarbonate, measuring roughly 900 mm by 500 mm with a thickness of 3 mm to 4 mm , breath plus portable oxygen can - the breath plus portable oxygen can features 99 percentage pure medical-grade oxygen, a 12-liter gas capacity, and an integrated inhalation mask. it provides lightweight, short-duration respiratory support for travel and recovery.