8 Pcs Black Adhesive Foam Padding, Closed Cell Foam Sheet 1/4

OverKill: Closed Cell Foam Decoupler for Cars - Second Skin Audio

Nitrile Foam Sheet, For Industrial, Thickness: 5 mm at best price

Black Anti-Skid Foam Padding

PATIKIL Closed Cell Neoprene Sponge Foam Sheet Roll, Easy Cut Weather Seal Rubber Insulation Soundproof Padding Non Adhesive for DIY, 1/2 T x 13 W x 78L : Industrial & Scientific

Foam Sheet - 12 x 18, Hobby Lobby

Black Foam Sheet Self Adhesive Rubber Padding Neoprene Sponge Rubber Mat Padding Foam Rubber Sheet Insulation Rubber Foam Sheet (L:12in x W:12in x T:1/8in 8 PCS) : Industrial & Scientific

8 Pcs Black Adhesive Foam Padding, Closed Cell Foam Sheet 1/4

DGSL FOAM01 Foam Sheets Self Adhesive Closed Cell Pad Neoprene Rubber Anti Vibration Insulation Pads 12 x 8 3 4 at MechanicSurplus.com

20 Pcs Foam Padding Sheet, Self Adhesive 12 X 8 X 1/8 Foam Sheets Foam Insulation Closed Cell Rubber Anti Vibration High Density Neoprene Rubber Sheets Foam Rubber Pads, Black

These neoprene sheets consist of closed cell rubber sponge. Closed cell sponge rubber is created by distributing gas through the rubber during production, creating sealed air pockets within the rubber material. Due to these air pockets, closed cell neoprene sponge is softer, more compressible, and superior at absorbing energy compared to solid rubber.

Rubber-Cal Closed Cell Rubber Neoprene - 1/8 Thick x 39 x 78