Features1Fit Firmly: Adopt improved design, making the glasses fit firmly and not easy to fall off. 2Easy to Use: With optimized design, chicken glasses can be worn with tools or hands, which is convenient and fast to wear. 3Improve Survival Rate: Prevent your chickens from pecking each other, improve survival rate, increase egg production, reduce egg breakage rate. 4Diverse Features: Made of PP materials, durable, not easy to damage, good performance, and long service life. 5Chicken Products: Anti pecking eye blinders, suitable for most chickens, common grass chickens, pheasants, etc., safe and painless.SpecificationItem Type: Chicken GlassesMaterial: PP MaterialUse Time Period:1. Ordinary Grass Chickens Start To Wear Glasses Until They Are On The Market After One Catty.2. Pheasant (Pheasant, Colorful Pheasant) Is More Suitable For Wearing Glasses Until It Goes On The Market After Fifty Days.3. If The Ordinary Grass Chicken Is Less Than A Catty, And The Pheasant Is Less Than 50 Days, Users Who Want To Wear Glasses To The Chicken Should Try In Small Batches To Avoid Unnecessary Losses.4. At Present, Caged Chickens Are Not Suitable For Wearing Glasses (Because The Lens Width Is 5cm / 2.0in, And The Distance Between The Cage Wires Is About 5cm / 2.0in, It Is Extremely Inconvenient When The Chickens Stick Their Heads Out Of The Cage Every Time They Eat.).Package List200 x Chicken Glasses