Apluschoice via eBay offers the Yescom 10-Foot Aluminum Patio Half Umbrella in Green, model no. 07UMB018-10HFSS-04, for $36.90 with free shipping. That's the lowest total price we could find by $9. It's designed to be used in places where a full-size umbrella won't fit, such as against a wall, on a balcony, etc.