The Ergo Balance stirrup design helps keep the rider's foot flat in the stirrups by allowing for the natural curve of the horse's body and the rider's legs. The angled neck cone helps keep the stirrups level so your foot can rest flat in the stirrup, greatly reducing the knee and ankle fatigue and strain experienced by some riders. EBS Trail stirrups are 4" deep- 5" wide. 3" neck. Choice of two colors. Sold in pairs. Made in USA.