Long Arm Duster

So we made this with 7 sections. Stretches from 95 to 240 cm. Reach up to 3.5 meters high. No ladder. No scaffold. The electrostatic fiber head grabs PM2.5 dust. 97% pick up rate.

We own a 4,000 m² factory.
The pole has 7 sections of stainless steel. Stretches from 95 to 240 cm. Thinnest section is 1.2 cm. Thickest is 2.5 cm. Very solid.
The lock uses an upgraded metal double spring. We stretched it 8,000 times. Lock force stays above 12 kg.
The handle has silicone. Non-slip texture. Friction is 0.85.
The head is black and white electrostatic fiber. Fiber fineness is 0.2 denier. Surface area is 0.65 m² per gram. Head size is 32 cm by 10 cm.
Anti-static treatment. You can wash the head.

Pull the pole to 240 cm. Reach 3.5 meters high. Clean villa ceilings, shop windows, big lights, and tall cabinets. No ladder. Much safer.
Folds down to 95 cm. Easy to store.
The electrostatic fiber is very fine. 0.2 denier. Static grabs PM2.5 dust very well. 97% pick up. Picks up 98% of pet hair. Dust sticks to the head. Does not fall off.
The head turns 360° and bends 90°. Clean the top of a hanging light. Clean inside an AC vent. Any angle you need.
The silicone handle has wave texture. Wet hands still hold tight.
The head comes off for washing. After 50 washes, still works like new.
500 pieces minimum. 10 to 15 days lead time.