Non-specific low back pain (NSLBP) is extensively musculoskeletal conditions, where manual therapy techniques have been widely employed in its management, but their short term efficacy in chronic low back pain still need more investigations. Objective: This study aimed to discuss the SNAG versus Maitland techniques in the management of NSLBP. Methods: 60 patients with chronic NSLBP will share in the study. Sessions will be conducted 3 times per week for 4 weeks. The outcomes will be evaluated for pain by the numerical rating pain scale (NPRS), disability through Oswestry Disability Index, flexion range of motion by back range of motion device, postural stability by Biodex system will be assessed at baseline, immediately post-intervention, and at a four-week follow-up

Inclusion Criteria:

• Adults aged 25 to 40 years.
• Diagnosed with chronic NSLBP persisting for more than three months.
• Pain intensity between 3 to 6 on the Visual Analog Scale (VAS) during lumbar extension in a sitting position.
• Oswestry Disability Index (ODI) score between 20% to 40%.
• Restriction of the movement only in flexion ROM with the ability to perform at least 40° of trunk flexion.

Exclusion Criteria:

• Specific causes of low back pain (e.g., herniated disc, spinal stenosis).
• History of spinal surgery or trauma.
• Neurological deficits or systemic diseases affecting the musculoskeletal system.
• Pregnancy.
• Current participation in other physiotherapy programs.

All the data will be obtained from the experiment is under the protection of the Scientific Research Deanship, University of Ha'il, Saudi Arabia as this project is funded from it with number RG-20 202.