Indoor rock climbing holds have evolved significantly over the years, with a rich history that reflects the sport's growth in popularity and the development of climbing techniques. Here's a brief history of indoor rock climbing holds:

1. Early Climbing Holds (1970s):

   • Indoor climbing started in the 1970s, primarily as a training tool for outdoor climbing. Climbers often used wooden or natural holds, such as rocks etc, to practice their skills on indoor walls.
   • These early climbing holds were relatively simple and lacked the ergonomic design seen in modern holds.

2. Introduction of Polyurethane Holds (1980s):

   • In the 1980s, the first synthetic climbing holds made of polyurethane were introduced. These holds offered more variety in shapes and sizes compared to the early wooden holds.
   • Polyurethane holds were durable, lightweight, and easier to produce, making them a popular choice for indoor climbing gyms.

3. Evolution of Ergonomic Design (1990s):

   • During the 1990s, climbing hold manufacturers began to focus on creating ergonomic and comfortable shapes. These holds were designed to mimic the features found in outdoor rock formations more closely.
   • Holds with texture and features like pockets, crimps, slopers, jugs, and pinches were developed, allowing climbers to practice a wider range of techniques and movements.

4. The Rise of Commercial Hold Companies (Late 1990s - Early 2000s):

   • In the late 1990s and early 2000s, commercial climbing hold companies, such as Metolius and Entre-Prises, emerged. These companies revolutionized the climbing hold industry by offering a vast selection of holds for climbing gyms worldwide.

5. Advances in Materials and Manufacturing (2000s-Present):

   • As the sport of indoor climbing continued to grow in popularity, advancements in materials and manufacturing processes have allowed for the creation of holds that are more lifelike, comfortable, and durable.
   • Holds are now made from a variety of materials, including polyurethane, polyester resin, and even eco-friendly options. These materials can be molded into intricate shapes with incredible texture and detail.

6. Customization and Competition Holds (Present):

   • The modern climbing hold industry offers a wide range of holds, from small footholds to massive volumes and feature-rich competition holds.
   • Climbing hold designers are constantly pushing the boundaries of design, creating innovative shapes and features to challenge climbers and set unique routes and problems for competitions.

7. The "Art" of Climbing Holds:

   • Some climbing holds are now considered pieces of art, with holds designed by renowned artists, adding an aesthetic dimension to indoor climbing.

Indoor rock climbing holds have come a long way since their humble beginnings, and they continue to evolve to meet the needs of climbers at all skill levels. The variety of shapes, sizes, and features available today allows for a diverse and exciting climbing experience in indoor gyms around the world.