This telescope and periscope kit is a great addition to any swing set. It will provide your child with hours of play time and let their imagination take them places like under the sea in a submarine, or a pirate looking for buried treasures. Kit includes 1 telescope and 1 periscope. The telescope is made of polyethylene, swivels up and down, comes complete with mounting hardware, has two non-magnifying lenses and is weatherproof. The periscope is 14 in. long, made of polyethylene, swivels up and down, comes complete with mounting hardware, has clear lenses and mirror for clear viewing.