It come without ceiling mount:
However the Extension Strap (Daisy chain) could be used to mount to a round pipe or beam in the house or Outdoor. Great for Solo or Partner training Sport.
Could it be hook on the door?
NO, Couldn’t be hook on the door.
Is there an age limit?
Better 10 years old or older.
The weight limit:

Weight Class-1: 50 kg, fit for weight: 80-120 pounds
Weight Class-2 60 kg, fit for weight: 115 – 140 pounds
Weight Class-3: 70 kg, fit for weight: 135- 180 pounds
Weight Class-4: 80kg, fit for weight: 180 – 220 pounds
Please select the weight section that is right for you. Too light or too heavy are not ideal. It’s ideal in the weight range.
Different bungee cord consist of different elastic cores(degree of thickness is different):
For weight class-1, consists of 3 thin elastic cores (Φ12mm)
For weight class-2, consists of 2 thin elastic cores and 1 thick core (Φ12mm and Φ15mm)
For weight class 3, consists of 1 thin elastic core and 2 thick cores (Φ12mm and Φ15mm)
For weight class 4, consists of 3 thick elastic cores (Φ15mm)

This is just for flying exercises in which the whole body weight of a person is in the 4D professional Sport.
The length of the Bungee Cords: 130cm
The length of the daisy chain: 105cm (there are two daisy chains included)
Two already installed carabiners
Delivery included:
1* Bungee Cord
2* daisy chains
2* carabiners(already installed)
1* safe Belts( Protect Leg Waist Wider Safe Seat Belts)
1* Rotational Device (Can be rotated 360°)

Product Features

• The Bungee Cord is great and ideal for agility and plyometric training. It helps improve your agility, increase your speed, increase the Sense of balance and strengthen your speed, technique and your Body parts. It helps bring your physical skills to a new level. With this tool you could do many great exercises.
• It’s Great for Yoga, Pilates, soccer, MMA, Fencing, Swimmer,footballer and basketball player
• The weight limit: Weight Class-1: 50 kg, fit for weight: 80-120 pounds; Weight Class-2 60 kg, fit for weight: 115 – 140 pounds; Weight Class-3: 70 kg, fit for weight: 135- 180 pounds; Weight Class-4: 80kg, fit for weight: 180 – 220 pounds
• Different bungee cord consist of different elastic cores(degree of thickness is different): For weight class-1, consists of 3 thin elastic cores (Φ12mm); For weight class-2, consists of 2 thin elastic cores and 1 thick core (Φ12mm and Φ15mm); For weight class 3, consists of 1 thin elastic core and 2 thick cores (Φ12mm and Φ15mm); For weight class 4, consists of 3 thick elastic cores (Φ15mm)
• This is just for flying exercises in which the whole body weight of a person is in the 4D professional Sport.