Lovdock offers the iKayaa Non-Slip Folding 3-Step Ladder for $26.50 with free shipping. That's $3 under the best we could find for a similar one sold elsewhere, excluding the mention below. It features a 331-lb. weight capacity and measures approximately 36" x 19" x 24".
A close price: liho-uk02 via eBay has it for $26.99 with free shipping.