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2. Height and Width Ensure that the cages you choose are tall enough to accommodate the specific varieties of tomatoes you'll be growing. On average, extra large cages are between 5 and 7 feet tall, providing sufficient vertical growth. The diameter at the base should also be wide enough to support the plant without tipping over.

Cost. Production time is the major influence on cost. Wire wound springs have short production times. Machined springs cannot approach the low cost of wire product. It would be surprising to find a simple and inexpensive machined spring, produced in high quantities costing less than $2 dollars each. However, machined springs offer features that validate their use. These features include; integrated attachment points, higher precision, reduced assembly and acquisition effort, and quiet and clean contacts.

Conclusion

Spiral coil springs have many applications, notable ones include: