Hard Spring *Firmness: 7/10* Single Size 38″X75″ 96cm*193cmDouble size 54″X75″ 137cm*193cmQueen size 60″X80″ 152cm*203cmKing size 76″X80″ 192cm*203cmSplit King (Twin XL*2) 38″X80″ 96cm*203cm Made in Canada, Factory directly to your store/warehouse, say bye-bye to bad quality! Why Hard Spring Mattresses Wide audience：The hardness is moderate, meeting the hardness requirements of most customers. Breathability: Spring are more porous and allow for better breathability Durability: Brushed Wire Springs are known for their durability and long service life. The high-quality steel used resists wear and tear and is suitable for heavy-duty applications and long-term use. High load-bearing capacity: The spring diameter is thicker, the number of spring layers is higher, and the load-bearing capacity is better
