Hi Tiffany,
In addition to the info Sherry has already provided, if the GG Equine muzzle is the Green Guard one, as nice as it looks, it is useless for actually preventing a horse from ingesting too much grass. In spite of the advertising, it's better suited to preventing a horse from chewing on blankets, boots and fences.
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Lavinia, George Too, Calvin (PPID) and Dinky (PPID/IR)
Nappi, George and Dante Over the Bridge
Jan 05, RI
Moderator ECIR