Highly flexible polycarbonate side enables smooth sanding on concave surfaces
Semi-rigid foam side provides control for convex and flat surfaces
CNC machined routered corners and edges for consistent, precise sanding
3/16 inch foam and polycarbonate base thicknesses for tailored sanding performance
Large set includes four block sizes for versatile application
Summarized by Shop
Newly released large detail set. Highly flexible polycarbonate on one side and semi rigid foam on the other. Ideal for dry sanding and wet sanding extreme curves. CNC machined routered corners and edges. 3/16" foam, polycarbonate base thicknesses range on size.
Included (4 blocks):
2.5" X 18"
2.5" X 14"
2.5" X 10
2.5" X 6"
Set includes
4 sanding blocks (2.5 x 18 in, 2.5 x 14 in, 2.5 x 10 in, 2.5 x 6 in)
Material
Polycarbonate (flexible), Foam (semi-rigid)
Base thickness
3/16 in
Backing color
Black
Backing material
Plastic
Backing pattern
Solid
Summarized by Shop
4.8
11 ratings
5
4
3
2
1
Love them
Bought these blocks special for my 68 mustang fastback roof and decklid. So far so good
P
Paul · 12 days ago
Hyper Flex Block Kit
Seem durable and like how a little flex is good for the rounded late 30s cars. Nice having a basic verity. Haven't used them yet
J
James · July 20, 2026
Hyper sanding blocks
I do like those blocks, but what they are they work very well