Pressure-Sensitive Conductive Sheet
This conductive pressure sensitive material (also known as "Velostat" or "Linqstat") is a good addition for your wearable/sensor hacking toolkit. It is pressure-sensitive, by squeezing, it will reduce the resistance. This make it good choice for making flexible sensors.
It is also much less expensive than off-the-shelf pressure or bend sensors too. Each order comes with 28cm x 28cm piece. You may cut your sheet into many pieces and use each of them alone.
Dimensions: 280mm x 280mm
Temperature Limits : -45°C to 65°C (-50°F to 150°F)
Heat Sealable: Yes