A technical patent drawing rendered in classic blueprint style shows interlocking brick components across six detailed figures, each labeled and rendered in white linework against a deep blue ground. The composition combines the precision of engineering draftsmanship with the playful geometry of construction toys, creating a nostalgic yet architectural study of a beloved object's mechanical artwork. Water-resistant polyester, hookless and cut extra long to fit any bath, machine washable and made to order. It turns the bathroom wall into the room's best feature.