Film Rollers are used with rolled poly film or tubing, up to 40" in width. All our Poly Film Rollers are constructed in stainless steel, making makes them durable and sturdy. Additionally, our Film Rollers all feature a dependable non-slip base. Some models have a built in center-fold bar, or Separator, which is used to separate and keep centerfold films open while film is unwound. Some models have the option of a hole punching device.