Designed and manufactured in Canada, the new PRO-BLU 933TM wire connector was developed with the installers needs in mind. With an ergonomic design and a wide range of approved wire combinations, this wire connector is a perfect fit for the majority of residential and commercial applications. Ergonomic wing design makes installation easy and painless, even when installing multiple wire connectors Posi-Grip™ surface provides superior twisting power, even when hands are greasy or damp Finger-friendly plastic for an even more comfortable grip Rounded edge for safe and comfortable installation Made of durable polypropylene resistant to temperatures up to 125 deg C