These are 55mm (2.2inch) blade propellers for 6x15mm, 7x20mm, and 8.5x20mm coreless motor DIY micro quadcopters. The propellers with a 0.95mm mounting hole can be firmly mounted onto 1mm 4-axial motors.

Their smooth surface can greatly decrease wind resistance during flight. Therefore, the propellers can rotate at high speeds easily when reliably mounted on the quadcopter.

Besides, the propellers are made of high-tenacity material and thus can sustain crashes. You can have these 4 propellers, or, let’s say, 2 pairs (two random colours), for your mini-copter just to take off, or hold them as spare parts for replacement.

Features:

• Material: glass fiber.
• Total Length: 55 mm
• Propeller diameter (ID): 2.9 mm.
• Color: black and green.
• Durable plastic construction
• Strong and lightweight