Guests who are at least 10 years old and at least 130cm tall may weave on their own. If these conditions are not met, a guardian must accompany the guest. As a general guideline, guests should be tall enough for their feet to comfortably reach and firmly press the loom's foot pedals. Because the number of looms is limited, the number of people who can weave at the same time varies by plan. Up to 3 people can weave at once for the Coaster and Table Center (Large) plans, and up to 2 people for the Table Center (Small) plan.