Fielect 10 inches Paper Speaker Cone Subwoofer Cones Drum Paper 1.4 inches Inner Diameter 9.6 inches Outside Diameter with Rubber Surround 2Pcs 10" 35.5mm 245mm 2Pcs auspowers_batchsix 5mm amplitude 2hours Environmentally Friendly:ROHS

5mm amplitude 2hours Environmentally Friendly:ROHS Compliant【GPS CENTER FREQUENCY】: 1575

They will not move around and close easily without noise

So in climbing terms

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Fielect 10 inches Paper Speaker Cone Subwoofer Cones Drum Paper 1.4 inches Inner Diameter 9.6 inches Outside Diameter with Rubber Surround 2Pcs 10" 35.5mm 245mm 2Pcs auspowers_batchsix 5mm amplitude 2hours Environmentally Friendly:ROHSFielect 10 inches Paper Speaker Cone Subwoofer Cones Drum Paper 1. 4 inches Inner Diameter 9. 6 inches Outside Diameter with Rubber Surround 2Pcs Product Features Dimension Outer Diameter: 245mm 9. 56" ; Inner Diameter: 35. 5mm 1. 38"; Depth: 55mm 2. 15"; Material: paper and rubber. High Quality Materials The Paper Speaker Cone Drum is made of high grade paper. Strong enough to resist scratch and stretch, a sealed round edge would block the dirt and