rabbit Collagen Type Ⅰ,Col Ⅰ ELISA Kit is designed and made by Cusabio for detectingCollagen Type Ⅰ,Col Ⅰ. For more product information, please check the following link: http://www.cusabio.com/product/ELISA_Kit/rabbit_Collagen_Type_1,Col_1_ELISA_Kit-71990.html.