Since http://abilitydubai.com/ offers services, it likely wouldn't be the best fit to sell physical products like outdoor umbrella stands. However, there are a few ways you could still be helpful to your client:
Offer Sourcing Services: You can reach out to companies that sell outdoor umbrella stands in Dubai and offer your services to connect your client with them. You could highlight your ability to find reputable businesses and negotiate good deals.
Provide Installation Services: If your client already has an umbrella stand but needs help setting it up, you could offer installation services. This could be a valuable service for people who don't feel comfortable doing it themselves.
Content Creation: You could create a blog post or landing page on your website that talks about the benefits of using outdoor umbrella stands in Dubai. This could attract potential clients who are searching for information on the topic. The content could also mention where to buy umbrella stands in Dubai (without directly selling them yourself).