4 x 100 ft
+Very long 100 foot roll
+Thick 7 mil film for durability
+Black backing blocks light from passing through
−Black backing gives no reflective surface on that side
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Product details
Grow1 Mylar Reflective Film Black Backing 7mil 4ft x 100ft Roll for Grow Rooms and TentsNo price recorded yet.View on AmazonPros
+Very long 100 foot roll
+Thick 7 mil film for durability
+Black backing blocks light from passing through
Cons−Black backing gives no reflective surface on that side
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