---
product_id: 147256950
title: "Build a Rock Solid Core: Stop The Sit Ups and Save Your Spine"
brand: "doug kelsey"
price: "$387"
currency: MXN
in_stock: true
url: https://www.desertcart.mx/products/147256950-build-a-rock-solid-core-stop-the-sit-ups-save
store_origin: MX
region: Mexico
---

# Build a Rock Solid Core: Stop The Sit Ups and Save Your Spine

**Brand:** doug kelsey
**Price:** $387
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Build a Rock Solid Core: Stop The Sit Ups and Save Your Spine by doug kelsey
- **How much does it cost?** $387 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/147256950-build-a-rock-solid-core-stop-the-sit-ups-save)

## Best For

- doug kelsey enthusiasts

## Why This Product

- Trusted doug kelsey brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Full description not available

## Images

![Build a Rock Solid Core: Stop The Sit Ups and Save Your Spine - Image 1](https://m.media-amazon.com/images/I/51kMVwoqPfL.jpg)

---

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**Shop now:** [https://www.desertcart.mx/products/147256950-build-a-rock-solid-core-stop-the-sit-ups-save](https://www.desertcart.mx/products/147256950-build-a-rock-solid-core-stop-the-sit-ups-save)

---

*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-21*