Parameter:

Model	MM-ER128	MM-EF135	MM-EF240	MM-EF340	MM-EF455	MM-EF570	MM-EF9120	MM-EF25130
Shape	Round	Flat
Rib	1	1	2	3	4	5	9	25
Content	Polyester+ Spandex		Latex+ Polyester	Polyester+ Spandex			Latex+ Polyester	Polyester+ Spandex
Elasticity[1]	1:3.0	1:2.8	1:3.6	1:2.8~1:3.0			1:2.5	1:2.8~1:3.0
Width mm	2.5-2.8	3.5	4.0	4.0	5.5	7.0	12	13
Length yards/kg	1200	880	800	680	520	340	110	160
Package	Way Inner: Poly Bag, Way Outer: Carton Size: 71*46*37 CM                       Size: 37*37*20 CM Weight: 30 KG~35 KG                 Weight: 5 KG

[1] 1:3.0 has an expansion of 10cm = >30cm

[2] Customized Colors

Applications: this N95 face mask ear-loop elastic cord is especially suitable for N95 dust face masks elastic ear-loop, N95 masks ear loop, dust-proof respirators elastic, con type masks ear-loop, folded masks ear-loop, pollen mask elastic bands, duckbill mask elastic cords,3M masks elastic ear-loop, 3M respirators elastic rubbers, mask elastic strings and so on.

Tips for Mask & Respirator Elastic Bands Purchasing:
1. Beware of LATEX and SPANDEX
LATEX with weak elasticity
LATEX is HARMFIL for healthy
LATEX cann't good weld by ULTRASONIC Welders
2. Beware of Low Price
They may sent you LATEX elastic band instead of SPANDEX
Mask Material offers:
1. SPANDEX elastic bands
2. Two times SOFTER elastic bands
3. 15~20 Newton Welded Strength elastic bands
4. Reasonable price as we are manufacturer ourself.