Weaver Cow Fly Mask Size:One Size Fits Most ST (Standard): Mid-diameter and balanced

ST (Standard): Mid-diameter and balanced weight for maximum feel and control

The precision ground steel blades make smooth

Solid-state electronic thermostat provides a more precise way to regulate the temperature

Hay bale spike comes standard with a 12V power up/power down hydraulic pump

and 6 fatty acids

Weaver Cow Fly Mask Size:One Size Fits Most ST (Standard): Mid-diameter and balancedWeaver Cattle Fly Mask Protect your steer or heifer's face and eyes from those pesky insects with the Weaver Cow Fly Mask. Features: see thru mesh construction elastic lining fleece covered hook and loop closure One size fits most (600 1400 lb). Dimensions: 8. 5" x 6" x 3. 5"